题目内容
曲线在点(1,1)处的切线方程是________.
x+y-2=0
曲线在点(1,1)处的切线方程为________.
设曲线在点(1,1)处的切线与x轴的交点的横坐标为xn,则的值为
-log20102009
-1
(log20102009]-1
1